okay so my situation is that i am working an avr chip which is the Atmega328p and what i want to do is i want to lets say have a user input in python lets say the user types in a string and from there i want my avr c code to interpret the code.
The reason i am doing this is because i am making a basic cnc gui so the user will input a stepper motor axis like x y or z then the direction "-" or "+".
Then a distance which is a number into python and then from python i want to send this info to the avr-c code which will then use the info to control steppers.
I want to avoid using the default serial communication thing in avr c because it will be harder to do since the user will input strings like "x-20 y+10" and etc.
It is much easier to use python to interpret the text then to use avr-c so how would i go about doing this ////////AFTER SOMETIME//////////////////////////
okay so after much confusion and researching I came up with a code based on the syntax of pyserial as well as the struct modules, here is the code:
```
import serial
import struct
import binascii
#Function to Initialize the Serial Port
def init_serial():
global ser #Must be declared in Each Function
ser = serial.Serial()
ser.baudrate = 9600
ser.port = '/dev/ttyACM0' #com port of avr
ser.timeout = 10
ser.open() #Opens SerialPort
# print port open or closed
if ser.isOpen():
print 'Open: ' + ser.portstr
init_serial()
values = (1)
s = struct.Struct('I')
packed_data = s.pack(*values)
ser.write(packed_data) #Writes to the SerialPort
while 1:
bytes = ser.readline() #Read from Serial Port
packed_data = binascii.unhexlify(bytes)
s = struct.Struct('I')
unpacked_data = s.unpack(packed_data)
print 'You sent: ', unpacked_data #Print What is Read from Port
#Ctrl+C to Close Python Window```
Please inform me if I am doing something wrong or right, or if this code work actually work at all, if so this is the python side of the transmission of python data to avr-c, how would I then handle the avr-c side of this communication with python over serial communication?